The role of terphenyl-containing carboxylic acid in the oligomerization of aryl vinyl ketone
The molecular structure of 8-((4′′-((1 R ,4 S )-4-butylcyclohexyl)-2′-chloro-[1,1′,4′,1′′-terphenyl]-4-yl)oxy)oct-1- en -3-one (TERPh-VK) and 6-((4′′-((1 R ,4 S )-4-butylcyclohexyl)-2′-chloro-[1,1′:4′,1′′-terphenyl]-4-yl)oxy) hexanoic acid (TERPh-COOH) is analyzed by FTIR spectroscopy. Vinyl ketone...
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Veröffentlicht in: | Physical chemistry chemical physics : PCCP 2022-11, Vol.24 (42), p.2683-2693 |
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Hauptverfasser: | , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The molecular structure of 8-((4′′-((1
R
,4
S
)-4-butylcyclohexyl)-2′-chloro-[1,1′,4′,1′′-terphenyl]-4-yl)oxy)oct-1-
en
-3-one (TERPh-VK) and 6-((4′′-((1
R
,4
S
)-4-butylcyclohexyl)-2′-chloro-[1,1′:4′,1′′-terphenyl]-4-yl)oxy) hexanoic acid (TERPh-COOH) is analyzed by FTIR spectroscopy. Vinyl ketone isolated from solution forms a thermodynamically unstable
cis
conformation due to probable peculiarities of the crystal structure formation. The heating of this substance above 100 °C results in the
cis
-
trans
transformation with the simultaneous opening of the vinyl double bond. The mixing of the above terphenyls in solution followed by the isolation of the solid product results in the formation of the TERPh-VK/TERPH-COOH associated species due to the H-bonding between ketone and carboxylic groups. The thermal transformation of the H-bond associated species resulted in the formation of the oligo (TERPh-VK)/TERPh-COOH associated species.
8-((4′′-((1
R
,4
S
)-4-butylcyclohexyl)-2′-chloro-[1,1′,4′,1′′-terphenyl]-4-yl)oxy)oct-1-
en
-3-one (TERPh-VK) and 6-((4′′-((1
R
,4
S
)-4-butylcyclohexyl)-2′-chloro-[1,1′:4′,1′′-terphenyl]-4-yl)oxy) hexanoic acid (TERPh-COOH) are, analyzed by FTIR spectroscopy. |
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ISSN: | 1463-9076 1463-9084 |
DOI: | 10.1039/d2cp03187f |